Closure for mouths of bags.



PATENTED DEG. 26, 1905.

APPLICATION FILED JUNE20,1905.

T. G. PALMER.

CLOSURB POR MOUTHS OF BAGS.

Vss

UNITED STATES PATENT OFFICE.

CLOSURE FOR NIOUTHS OF BAGS.

No. 808, 1 l0.

Specification of Letters Patent.

Patented Dec. 26, 1905.

Application filed June 20, 1905. Serial No. 266,180.

To all 1,071,077?, t ntfty 00700671711:

Be it known that I, TRUMAN G. PALMER, a citizen of the United States, residing at Chicago, county of Cook, State of Illinois, have invented certain new and useful Improvements in Closures for Months of Bags; and I do hereby declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. i

In the patent granted to me, dated February 2l., 1905, No. 783,303, I have described and claimed a closure for the mouths of bags used for the transportation or shipment of sugar and other granular or pulverulent material, the particular purpose of which is to provide a bag with a protecting-strip underlying its mouth and located between the upper surface of the bags contents and the under side of the 'mouth-closing seam, the strip being secured in place in a novel manner, so that it is free to move to a limited extent, yet is also in position to cover any holes in the bag fabric that may be formed by the needle during the operation of running the seam or that may be caused by the lateral pulling of the fabric on the stitches in handling the bag.

The present improvement is designed to avoid the necessity of providing a separate protecting-strip and to apply in lieu thereof the inturned edges of the bags mouth, which when the mouth is closed will provide a protecting-facing constituting a loose iiap between the seam at the mouth and the material contained in the bag and subserve the same purpose as the protecting-strip described in the patent aforesaid..

The improvement is illustrated in the accompanying drawings, forming part of this specification, in which- Figure l is a side elevation, partly in section, of the upper end of the bag having the edges of the mouth thereof turned in according to the present plan. Fig. 2 is a side elevation, partly in section, of the upper part of the filled bag with its mouth closed. Fig. 3 is a top plan view of the bag with its mouti closed.

Referring to the drawings, a denotes a bag of burlap or other woven fabric that has preferably been treated with a thin application of an agglutinant to mat down and stiffen the fibers of fuzz on the surface of the fabric in accordance with my Patent No. 772 ,629, granted on the 17th of October, 1904. The bag is made somewhat longer than has been customary heretofore in order to permit the edges of the mouth to be turned inward to form a depending flap b, which hangs freely within the bag. The mouth of the bag is closed by bringing the edges above the flap l) together and folding or rolling them over upon themselves, as best shown at c in Fig. 2 3 but the present invention, broadly, is not limited to any particular mode of closing the mouth or securing the edges of the bag together, nor specifically, except as pointed out in certain of the specific claims appended hereto. As the edges of the bags mouth are brought together to close the mouth or opening the depending flap b is s read laterally in all directions, as clearly il ustrated in Fig. 2, and it is sufficient for the successful practice of the invention that this lateral eX- tension of the flap shall project far enough to completely underlie that part of the top of the bag where the stitches of the seam come. After the roll or fold has been formed in the mouth of the bag it isproperly stitched by passing a thread or cord through the fabric of the bag on each side of the fold c and eX- tending it over the fold in the form of a lacing. According to the preferred form of the seam thus formed it will be noted that the stitches do not extend through the fold c from side to side, which is the usual arrangement, but pierce the bag fabric below the fold, forming lines of stitch-holes running along each side of the fold to the ends, where the usual ears e for handling the bag are formed.

In filling the bag the contents are poured in up to the desired point, and the edges of the mouth are turned in to form the depending flap b. The four plies of the fabric about the mouth are then rolled orfolded in the manner shown or'in any other preferred way, and the closure is completed by running the seam as before described. As the fold is formed the flap l) is forced laterally over the top of the material contained in the bag, and the outlying edges thereof are left unattached and free to move with respect to the other portions ofthe bag fabric. The stitches in passing through the folds of the fabric unite the adjacent parts of the iiap b which lie below the fold, as indicated in Fig. 2, so that when the usual strains incident to handling the bag are put upon the fabric, thereby tending ot open up the meshes thereof in the neighborhood of IOO IIO

the seam, the flap b, being sufficiently elastic and free to move Within the bag, serves to immediately close the opening which would be formed in the outer layer of the bag fabric. ln forming the stitch-holes it is also to be noted that the operation of drawing the cord taut will tend to displace the flap with respect to the outer layer of the fabric, and thereby throw the corresponding holes in the two plies out of registry, so that the escape of material therethrough is prevented.

It is to be particularly observed that the protectingflap b constitutes an integral part of the fabric of the bag itself and that when the closure is effected it lies loosely between the closing-seam and the material contained within the bag and has a capability of free and independent movement of the other material of the bag, so that in the event that lateral strains on the bag or the stitching operation stretches or opens up holes in the bag the iap will form a protectingfacing, which immediately closes the holes and keeps them covered to effectually prevent leakage of the contents of the bag therethrough.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. A closure for the mouths of bags for granular and pulverulent material, comprising a protecting-facing -formed by the inturned edges of the bag-mouth, said edges constituting a loose flap between the seam at the mouth and the material contained in the bag, and underlying the fabric at the top of the bag throughout a considerable area.

2. A closure for the mouths of bags for granular and pulverulent material, comprising a protecting-facing formed by the inturned edges of the bag-mouth and held in position by means of stitches passing through the central meeting portions of the facing, so as to leave the outlying portions of the facing unattached and free to move, and to underlie the fabric at the top of the bag throughout a considerable area.

3. A closure for the mouths of bags for granular and pulverulent material, comprising a seam, the stitches of which pass over the closed portions of the mouth and through the bag on each side thereof, the edges of the mouth being turned inward and extending beyond the stitches to form a loose flap between the seam at the mouth and the material contained in the bag, and underlying the fabric at the top of the bag throughout a considerable area.

4. A closure for the mouths of bags for granular and pulverulent material, comprising the inturned edges of the bag-mouth, a fo d formed by the rolled-over upper portion of the bag, and a seam, the stitches of which pass around the fold and through the four plies of the bag, said inturned edges of the bag-mouth constituting an outwardly-extending loose flap between the fold and the material contained in the bag.

5. A closure for the mouths of bags for granular and pulverulent material, compris'- ing a protecting-facing formed by the inturned edges of the bag-mouth which underlie the mouth-closing seam, said facing being free at its outer edges to permit it to move-with respect to the other portions of the bag fabric, and to underlie the fabric at the top of the bag throughout a considerable area.

6. A bag for granular and pulverulent material, having the edges of its mouth turned inward to form aflap within the bag, to underlie the fabric at the top of the bag throughout a considerable area.

7 A bag for granular and pulverulent material, having the edges of its mouth turned inward to form a flap with loose unattached outlying portions within the bag underlying,

the fabric at the top of the bag throughout a considerable area.

In testimony whereof I afl-ix my signature in presence of two witnesses.

TRUMAN e. PALMER.

Vitnesses:

ALBERT C. HAMMETT, V. L. PALMER. 

